In Renee Workman's Scenario Action #2, which regimen describes a continuous IV magnesium sulfate infusion?

In Renee Workman's Scenario Action #2, which regimen describes a continuous IV magnesium sulfate infusion?

• A. Magnesium sulfate 40 grams in 100 mL LR continuous IV @ 2 g/hr
• B. Dinoprostone insert vaginally x1
• C. Magnesium sulfate 4 g over 15 minutes by intermittent IV infusion
• D. Restrict hourly fluids 125 mL/hr

Answer: (A)

A continuous IV magnesium sulfate infusion is identified by delivering a fixed amount of magnesium over time at a steady rate. In this scenario, magnesium sulfate is prepared as 40 grams in 100 mL lactated Ringer’s and run continuously at 2 grams per hour. That setup delivers magnesium steadily, maintaining a therapeutic level for seizure prophylaxis without a one-time bolus. The other options don’t fit: a vaginal dinoprostone insert is for cervical ripening, not magnesium administration; a single 4-gram dose given over 15 minutes is an intermittent infusion, not continuous; and restricting hourly fluids is a fluid management measure, not an IV magnesium regimen.

A continuous IV magnesium sulfate infusion is identified by delivering a fixed amount of magnesium over time at a steady rate. In this scenario, magnesium sulfate is prepared as 40 grams in 100 mL lactated Ringer’s and run continuously at 2 grams per hour. That setup delivers magnesium steadily, maintaining a therapeutic level for seizure prophylaxis without a one-time bolus. The other options don’t fit: a vaginal dinoprostone insert is for cervical ripening, not magnesium administration; a single 4-gram dose given over 15 minutes is an intermittent infusion, not continuous; and restricting hourly fluids is a fluid management measure, not an IV magnesium regimen.